JP2006080221A - Electronic apparatus unit mounting structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a unit mounting structure which can improve the workability of inserting units of an electronic apparatus into a housing, and can also improve the assembling operability of slide rails. <P>SOLUTION: A pair of housing-side rails 4a and 4b are formed on the left and right sides of the inner surface of the housing, respectively, while at the same time a pair of unit-side rails 2a and 2b are formed on the left and right sides of the external surface of the unit 2, respectively. The pair of the housing-side rails 4a and 4b or the pair of unit-side rails 2a and 2b is trued up in the insertion direction at the insertion starting end, and the other pair is shifted in the insertion direction at the insertion starting end. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a unit mounting structure of an electronic device that supports a unit so that the unit can be inserted and removed.

  In a housing used for an electronic device or the like, there is a structure in which a connector is disposed on the back of the unit in order to connect the housing and the unit mounted in the housing. When it is necessary to insert / remove the connector on the back of the unit, such as during equipment maintenance, the unit is pulled out to the front of the housing. In order to improve workability, a slide rail structure that makes it easy to pull out the unit is often used. A pair of left and right slide rails are provided on the inner wall of the casing and a pair of left and right sides on the outer wall of the unit, and the slide rails on the casing side and the slide rails on the unit side are slidably fitted (for example, Patent Documents). 1).

  In a configuration in which the unit can be completely pulled out from the housing, the unit is removed from the housing for maintenance and necessary maintenance is performed, and the unit is inserted into the housing after the maintenance is completed. In such an electronic device in which the unit can be inserted into and removed from the housing, the length of a pair of unit side rails attached to the unit, such as an inner rail, and a pair of housing side rails attached to the housing, such as an outer The lengths of the rails are the same, the insertion start side ends of each pair of rails are aligned, and the operation of inserting the inner rails into the outer rails is performed simultaneously for each of the two rails that make a pair. There is a need. However, it is a very difficult task to simultaneously fit the pair of left and right unit side rails to the housing side rail. This is particularly noticeable when a heavy unit is mounted or when the mounting position of the unit is high.

On the other hand, there is little play between the facing distance between the pair of inner rails and the facing distance between the pair of outer rails due to the structure of the rails, and accurate alignment is required when inserting. For this reason, particularly when the unit is heavy or the unit is mounted at a high place, it is very difficult to simultaneously insert the two rails, which impairs workability.
Further, the inner rail and the outer rail are misaligned in the mutual positional relationship due to accumulation of assembly errors of the respective housings and units. Therefore, it is necessary to adjust the position so that the inner rail and the outer rail are meshed so as not to be displaced.

  In this regard, Patent Document 1 has a structure in which the outer rail moves in a direction perpendicular to the unit insertion / removal direction and the position can be adjusted. As an example of this position adjustable structure, there is an example in which an outer rail is attached to a bracket and the bracket is fixed to a housing frame with screws, bolts, nuts or the like. Alternatively, even when the bracket is not used, screws, bolts, and nuts are used as means for fixing to the housing, and when adjusting the position, the bolts are loosened and the outer rail is moved in a direction perpendicular to the insertion / extraction direction. However, in any case, there is a problem in assemblability such that the position adjusted during the fixing operation by bolting tends to be shifted, and readjustment is necessary.

Japanese Utility Model Publication No. 7-29891

As described above, in the conventional electronic device unit mounting structure, it is difficult to insert the unit side rail into the housing side rail. In addition, there is a problem in assemblability because it is necessary to increase the mounting accuracy of the unit side rail and the housing side rail in order to make the rails mesh well.
The present invention has been made to solve the above-described problems, and is a unit mounting structure for an electronic device that can improve workability and assembly of a slide rail when the unit of the electronic device is inserted into a housing. The purpose is to provide.

  The unit mounting structure of the electronic device according to the present invention is provided on each of the pair of housing side rails provided on the left and right inner walls of the housing, and on the left and right outer walls of the unit that can be inserted into and removed from the housing. One of the pair of unit side rails has a configuration in which the insertion start side end portions are aligned in the insertion / extraction direction, and the remaining pair has a configuration in which the insertion start side end portion is displaced in the insertion / extraction direction. In addition, the pair of housing side rails have an adjustment mechanism that can adjust the interval between the pair of housing side rails, and this adjustment mechanism can move one of the pair of housing side rails within a range of movement arbitrarily defined in the direction of adjustment of the opposing interval. The supporting means for supporting and the elastic means for urging the housing side rail supported by the supporting means toward the other housing side rail are provided.

  According to this invention, the workability | operativity at the time of inserting the unit of an electronic device in a housing | casing can be improved. Moreover, the assemblability of the slide rail can be improved.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described. In FIG. 1, the casing 1 is a box having a rectangular parallelepiped shape, and is illustrated with a frame structure that is easily understood as a skeleton. The side wall portion on the front surface of the housing 1 is a rectangular opening 1a for inserting and removing the unit. A unit 2 having a rectangular parallelepiped shape passing through the opening 1a is movably supported in the insertion / removal direction 3 corresponding to the depth direction of the housing 1 via a guide means, and is accommodated in the housing 1. It is taken out outside. FIG. 1 shows a state immediately before the unit 2 is inserted into the housing 1.

  Guide means for movably supporting the unit 2 in the insertion / removal direction are provided on the housing 1 side and the unit 2 side, respectively. The guide means provided on the housing 1 side are a pair of housing-side rails 4a and 4b made of slide rails, the longitudinal direction of which is parallel to the insertion / removal direction 3 and faces the left-right direction orthogonal to the insertion / removal direction 3. Attached to the inner wall. On the other hand, the guide means provided on the unit 2 side is a pair of unit side rails composed of slide rails, and is attached to the left and right outer walls of the unit 2.

  As shown in FIG. 2 showing the relationship between the housing 1 and the unit 2 in a plan view, of the pair of housing-side rails 4a and 4b and the pair of unit-side rails 2a and 2b, the housing-side rails 4a and 4b are Insertion start side ends 4a1 and 4b1 which are ends on the opening 1a side are aligned in the insertion / extraction direction. In the other pair of unit side rails 2a and 2b, the insertion start side ends 2a1 and 2b1, which are ends on the opening 1a side, are displaced in the insertion / extraction direction, and the insertion start side end 2a1 is more than the insertion start side end 2b1. It projects by a dimension Δ on the far side (front) in the insertion direction.

  Such a configuration uses, for example, a pair of casing-side rails 4a and 4b having the same length, and is attached to the inner wall of the casing 1 with the opposite side of the insertion start side aligned in the insertion / extraction direction. The side rail can be obtained by using the rail 2a formed with a dimension Δ longer than the rail 2b and attaching the opposite side of the insertion start end side to each rail 2a, 2b in the insertion / extraction direction. .

  With this configuration, it becomes possible to insert the unit side rails 2a and 2b into the case side rails 4a and 4b attached to the case 1 one by one, whereby the unit 2 to the case 1 can be inserted. Is easy to insert. When the unit side rails 2a and 2b are inserted into the housing side rails 4a and 4b, the insertion of the housing side rail 4b is performed at a stage immediately before the unit side rail 2a1 is inserted into the insertion start end 4a1 of the housing side rail 4a. Since the distance between the start side end 4b1 and the insertion start side end 2b1 (that is, both insertion ports) of the unit side rail 2b is large, the insertion start side end 4a1 of the housing side rail 4a and the unit side rail 2a Since it is possible to concentrate on the positioning of only one set with the insertion start side end 2a1, the position can be easily determined. Therefore, first, the insertion start end 2a1 can be easily inserted into the insertion start end 4a1.

  Next, regarding the insertion of the unit side rail 2b into the housing side rail 4b, since the unit side rail 2a has already been inserted into the housing side rail 4a and is in a restrained state, the load for the operator to support the weight of the unit 2 is In addition, since the range (movement range) in which the insertion start side end 2b1 can freely swing is limited by the constraint, the insertion start end 2b1 of the unit side rail 2b with respect to the insertion start end 4b1 of the housing side rail 4b is limited. Is also easy to insert.

In this example, the insertion start side end 2a1 is described as being configured to protrude forward in the insertion direction as compared with the insertion start side end 2b1, but conversely, the insertion start side end 2b1 is inserted into the insertion start side end. The insertion operation is facilitated for the same reason even in the configuration in which the portion protrudes toward the back side (forward) in the insertion direction as compared with the portion 2a1.
In addition, as means for obtaining a configuration in which the insertion start side end portion is in a positional relationship shifted in the insertion / extraction direction, in addition to means for making a difference in the length of the unit side rails 2a, 2b, the unit side rail 2a having the same length There is also a method of shifting the position to the outer wall of the unit 2 using 2b.

Embodiment 2. FIG.
This embodiment relates to a unit dropout prevention locking means. Among the configurations described in the first embodiment, in the configuration described with reference to FIG. 2, the elastic plate 6a is provided on the unit side rail 2a and the elastic plate 6b is provided on the unit side rail 2b as shown in FIGS. . Further, a protrusion 4a2 is provided at the insertion start side end 4a1 of the housing side rail 4a, and a protrusion 4b2 is provided at the insertion start side end 4b1 of the housing side rail 4b. The installation positions of the elastic plates 6a and 6b are positions separated from the insertion end side ends 2a2 and 2b2 of the unit side rails 2a and 2b (ends opposite to the insertion start side end) by the same dimension. The set of the elastic plate 6a and the protrusion 4a2 and the set of the elastic plate 6b and the protrusion 4b2 constitute a locking unit for preventing the unit from falling off and preventing the unit side rails 2a and 2b from being detached from the housing side rails 4a and 4b. To do.

From the state shown in FIG. 3, the unit side rail 2a is first inserted into the housing side rail 4a, and then the unit side rail 2b is inserted into the housing side rail 4b. Push in. FIG. 4 shows a state in which the unit 2 is completely mounted on the housing 1 in this way. In the state shown in FIG. 4, the unit side rail 2 a is inserted into the back of the housing 1 by a dimension Δ longer than the unit side rail 2 b. Since the insertion start side end 4a1 and the insertion end side end 2a2 and the insertion start side end 4b1 and the insertion end side end 2b2 match, the elastic plates 4a1, 4b1 from the insertion start side end 4a1, 4b1 Are equal,
Therefore, the lock structure for preventing the unit from falling off can be installed at the same position on the left and right as usual.

  Here, the lock structure will be described in more detail. FIG. 5 shows the housing side rail 4b and the unit side rail 2b taken out. The elastic plate 6b is a leaf spring that locks the slide of the rail, and its base end is fixed to the unit side rail 2b. The elastic plate 6b is bent so as to incline from the fixed portion toward the housing side rail 4b. A rectangular hole 6b2 is formed in the angled portion, and the free end is in sliding contact with the housing side rail. In order to make it smoother, it is further bent to form the tip bent portion 6b3.

  In the process of inserting the unit side rail 2b into the housing side rail 4b, the elastic plate 6b slides while its free end is pushed by the housing side rail and is elastically deformed. Eventually, the protrusion 4b2 provided at the insertion start side end 4b1 of the housing side rail 4b is caught in the hole 6b2 of the elastic plate 6b, and the unit side rail 2b is prevented from moving and is locked. This locked state is shown in FIG. Since this locked state is not originally intended, as shown in FIG. 7, a force is applied to the bent end portion 6b3 in the direction indicated by the arrow F to push it toward the unit side rail 2b to catch the protrusion. Remove. Thus, the unit-side rail 2b can further advance toward the back side in the insertion / extraction direction.

  In a state where the unit side rail 2b is inserted into the housing side rail 4b, the elastic plate 6b is sandwiched between the unit side rail 2b and the housing side rail 4b, and the elastic plate 6b is constantly applied to the unit side rail 2b side. Will be bent. When removing the unit side rail 2b from the housing side rail 4b, if the unit side rail 2b moves in the forward direction (extraction direction) of the housing 1, the angled portion of the elastic plate 6b comes out of the housing side rail 4b. The force acting on the tip bending portion 6b3 of the elastic plate 6b disappears, and the elastic plate 6b returns to its original shape due to elasticity as a leaf spring. At that time, the hole 6b2 of the elastic plate 6b and the protrusion 4b2 of the housing side rail 4b are aligned, and the protrusion 4b2 is caught in the hole 6b2, as shown in FIG. To release the lock, as shown in FIG. 7, the distal end bending portion 6b3 of the elastic plate 6b is pushed in the direction of the unit side rail 2b (direction indicated by the arrow F) as in the case of insertion.

  As described above, in the configuration in which the unit side rail 4a is inserted further into the housing 1 than the unit side rail 4b, the protrusions 4a1 and 4a2 as locking means for preventing each unit from falling off are inserted into and removed from the housing side rails 4a and 4b. It can be installed at the same position in the direction, and similarly, the elastic plates 6a and 6b as locking means for preventing each unit from falling off can be installed at the same position in the insertion / extraction direction with respect to the unit side rails 2a and 2b, and the conventional lock structure is used. It becomes possible to do. Further, since the protrusions 4b1 and 4b2 as the locking means can be installed at the same position on the left and right, the housing side rails 4a and 4b can have the same structure.

Embodiment 3 FIG.
This embodiment relates to a facing distance adjusting mechanism for a pair of housing side rails. This facing distance adjusting mechanism can be implemented in combination with the configuration of the first and second embodiments, and can also be implemented for a unit mounting structure of an electronic device that does not employ the configuration of the first and second embodiments.
When the unit side rail is inserted into the housing side rail when the unit is inserted into or removed from the housing in the slide rail structure for the purpose of inserting and removing the unit of the electronic device housing, The housing side rail moves in the width direction of the unit, and the position adjustment of the unit side rail and the housing side rail is performed.

  In FIG. 8, the housing side rail 4a is attached to the inner wall 1b of the housing 1, and the housing side rail 4b is attached to the inner wall 1c of the housing 1 via the adjusting mechanism 7 of the present invention. Unit side rails 2 a and 2 b are attached to the outer wall of the unit 2. In FIG. 9 which is an exploded view of the adjusting mechanism 7 in FIG. 8, metal fittings 8 and 9 are fixed to the back surface of the housing side rail 4 b in the vicinity of both ends in the insertion / removal direction 3.

  Between the metal fittings 8 and 9, Ω-shaped leaf springs 10 and 11 are attached. On the other hand, a U-shaped metal fitting 12 is attached to the inner wall 1c of the housing 1, and a bent portion and a back surface (opening) that are parallel to the front surface of the housing 1 (the surface provided with the opening 1a in FIG. 1). Rectangular holes 12a and 12b are formed in the bent portions parallel to the surface facing 1a. When the housing side rail 4b is attached to the housing 1, the protruding portion 9a of the metal fitting 9 is inserted into the hole 12b and the protruding portion 8a of the metal fitting 8 is inserted into the hole 12b.

  At the time of this insertion, the leaf springs 10 and 11 are compressed and urged in a direction away from the metal fitting 12 (direction approaching the other housing side rail 4a) under the state after the insertion. The size of the holes 12a and 12b is sufficiently larger than the thickness of the protrusions 8a and 9a. When the unit 2 is not mounted on the housing 1 due to this urging force, the protrusions 8a and 9a are in the holes 12a and 12b. It is pushed to the full and moved in one direction so as to be close to the inside of the housing 1, and the space between the housing-side rails is in the narrowest state. FIG. 8 shows the adjusting mechanism 7 assembled in this way.

  The housing side rail 4b has a structure capable of moving in the unit width direction with the projections 8a and 9a inserted through the holes 12a and 12b as guides. Since the moving range is determined by the size of the holes 12a and 12b and the size of the projections 8a and 9a within the range covered by the elasticity of the leaf springs 10 and 11, it is arbitrarily determined as necessary.

  As shown in FIGS. 8 and 10, the unit-side rail 2b inserted into the housing-side rail 4b has a slope portion 13 formed at the tip thereof. When the unit 2 is housed in the housing 1, since the slope portion 13 is provided at the tip of the unit side rail 2b, the unit side rail 2b is inserted into the housing side rail 4b toward the far side in the insertion / removal direction. As the slider slides, the housing-side rail 4 b is pushed in the direction of the outside of the housing 1 against the elasticity of the leaf springs 10 and 11. Finally, the housing side rail 4b is pushed out in accordance with the unit width, and the position thereof is held by the elasticity of the leaf springs 10 and 11. The state of the adjusting mechanism 7 when the unit 2 is housed in the housing 1 is shown in FIGS.

  As described above, the housing-side rail 4b is movably supported by the support means including the leaf springs 10 and 11, the metal fittings 8, 9, and 12 in the movement range arbitrarily determined in the facing distance adjustment direction, and thereby the other housing. Misalignment of the housing side rails 4a and 4b and the unit side rails 2a and 2b caused by assembly errors of the unit 2 and the housing 1 as the housing side support rail 4b moves in the left-right direction with respect to the body side rail 4a. This eliminates the need for adjustment before inserting the unit, improving workability. Further, the conventional position adjustment operation between the unit side rail and the case side rail is not required, and the unit can be easily inserted into and removed from the case.

Embodiment 4 FIG.
In this embodiment, the insertion start side ends of the pair of housing side rails are shifted in the insertion / extraction direction. In the configuration shown in FIG. 1 in the first embodiment described above, the insertion start side ends 4a1, 4b1 are aligned in the insertion / extraction direction with respect to the housing side rails 4a, 4b, and the insertion start side ends of the unit side rails 2a, 2b are arranged. By adopting a configuration in which 2a1 and 2b1 are shifted in the insertion / removal direction, the insertion operation is facilitated by first setting only one set of alignment.

This embodiment is based on the same technical idea. For example, in FIG. 1, the housing side rails 4a and 4b are shifted by projecting the insertion start side end portion 4a1 to the front side in the insertion / removal direction with respect to 4b1 and thereby shifting the unit side rails 2a and 2b. By inserting the insertion start side end portions 2a1 and 2b1 in the insertion / extraction direction, the insertion operation can be performed by setting only the alignment of the housing side rail 4a and the unit side rail 2a. It is something that tries to be easy.
However, in this way, for example, when the housing side rail 4a is configured to protrude to the near side in the insertion direction, the protruding housing side rail 4a interferes with the unit 2 when the unit 2 is inserted into the housing 1. The unit 2 cannot be completely stored.

  Therefore, in this embodiment, the housing side rail 4a is protruded from the housing 1 only at the time of alignment at the time of insertion. However, the protruding housing side rail 4a is used as the housing 1 in the process of inserting the unit 2. The unit 2 can be completely housed by adopting a configuration that moves to the back side.

  13 and 14, the pair of unit side rails 2A and 2B have their insertion start side end portions 2A1 and 2B1 aligned in the insertion / extraction direction 3, and the pair of housing side rails 4A and 4B start their insertion. The side ends 4A1 and 4B1 are displaced in the insertion / extraction direction 3. In this example, the insertion start side end 4A1 of the housing side rail 4A protrudes toward the front side in the insertion direction by Δ1 from the insertion side start end 4B1 of the housing side rail 4B.

  For this reason, when the insertion start end 2A1 is in contact with the insertion start end 4A1, the distance between the insertion start end 2B1 and the insertion start end 4B1 is still a distance of Δ1. In order to cause this shift, a plurality of rails 40 and 41 are slidably combined with respect to the housing side rail 4A to form a rail length adjustment structure, and a slide that locks expansion and contraction of the rail length by the rail length adjustment structure Locking means are provided.

  As shown in FIGS. 13 and 14, the housing side rail 4 </ b> B has a shorter structure than the housing side rail 4 </ b> A when the unit 2 is not inserted into the housing 1. After the unit side rail 2A is inserted into the rail 41 constituting the unit, the unit side rail 2B is inserted into the housing side rail 4B. The housing side rail 4A has a double structure, the outer rail 40 is fixed to the housing 1, and the inner rail 41 is movable in the insertion / removal direction 3. The rail 41 is fixed to the rail 40 by slide lock means until the unit side rail 2A is inserted.

  15 and 16, the swing plate 14 which is a main member constituting the slide lock means is swingably supported on the rail 41 by a step screw 15 serving as a fulcrum. An actuator 14a protrudes from the swing plate 14 in the left-right direction. The actuator 14 a passes through an opening 41 a formed in the rail 41 and reaches the vicinity of the side surface of the rail 40.

  A stopper 40a protrudes from the side surface of the rail 40 in the left-right direction. By the action of a spring 16 provided between one end of the swing plate 14 and the rail 40, the swing plate 14 is urged to rotate counterclockwise as viewed from the direction of the step screw 15. The rotation due to the urging is prevented by the second actuator 14 b formed at one end of the swing plate 14 coming into contact with the upper bent portion 17 of the rail 41. When the second actuator 14b is in contact with the upper bent portion 17 of the rail 41, the actuator 14a contacts the stopper 40a (see FIG. 17). For this reason, the rail 41 cannot move to the rear side of the housing.

  When the unit side rail 2A is inserted into the rail 41, the tip of the upper bent portion 2A2 of the unit side rail 2A comes into contact with the second actuator 14b, and the swing plate 14 rotates around the step screw 15 as a fulcrum. As a result, the actuator 14a is disengaged from the stopper 40a, so that the rail 41 can move to the rear side of the housing, and moves to the rear side of the housing together with the unit side rail 2A. The rail 40 moves until the insertion start side end 4A1 (the end of the rail 41) of the housing side rail 4A is aligned with the insertion start side end 4B1 of the housing side rail 4B. It stops when the end of the rail 41 hits the provided stopper 50.

  After the unit side rails 2A and 2B are inserted, the locked state by the elastic plates 60A and 60B having a configuration similar to the elastic plates 6a and 6b is released, and the unit 2 is inserted to the back of the housing 1. Here, the locked state by the elastic plate 60A is an engagement between the elastic plate 60A and a protrusion provided on the end of the rail 41 (a configuration similar to the protrusion 4a2; not shown), and is locked by the elastic plate 60B. Is an engagement between the elastic plate 60B and a protrusion (configuration corresponding to the protrusion 4b2; not shown) provided at the end of the housing side rail 4B.

  As shown in FIG. 19, a long hole 55 is formed in the rail 40, and a shaft 56 implanted in the rail 41 is slidably fitted in this long hole. When the unit 2 is pulled out from the state where it is inserted to the back of the housing 1, the shaft 56 moves to the front side in the elongated hole 55, and the rail 41 protrudes to the front side from the housing side plate 4B as shown in FIG. In this position, the shaft 56 comes into contact with the end 55a of the elongated hole 55, and the position of the rail 41 is restored to the initial state (the state having the protruding amount Δ1 shown in FIG. 13). At this time, the swing plate 14 is tilted as shown in FIG. 17, and the actuator 14a and the stopper 40a are in contact with each other. The length of the long hole 55 is the same value as the protrusion dimension Δ1 of the rail 41. Further, when the unit 2 is pulled in the extraction direction, the elastic plate 60 is locked, so that the unit 2 is extracted from the housing 1 by releasing the lock.

  In this embodiment, when the unit side rail 2A is inserted into the housing side rail 4A (specifically, rail 41), the insertion start side end 2B1 of the unit side rail 2B and the insertion start side end 4B1 of the housing side rail 4B Since there is a distance between them, the alignment of only one set of the unit side rail 2A and the housing side rail 4A precedes, so that the insertion operation becomes easy. In addition, when the unit side rail 2B and the housing side rail 4B are aligned, the unit side rail 2A is already restrained by the housing side rail 4A, so that the load for supporting the weight of the operator unit is small. In addition, since the movement range of the tip portion of the unit side rail 2B is limited, it can be easily inserted. As described above, since the insertion start side end portions of the pair of housing side rails are shifted in the insertion / extraction direction, it is possible to perform the alignment one by one, so that the workability of attaching the unit is improved. Needless to say, the housing side rail 4A having such a rail length adjusting structure can also be configured as a housing side rail facing distance adjusting mechanism according to the third embodiment.

It is the perspective view explaining the state just before insertion of the unit with respect to a housing | casing. It is a top view explaining the state just before insertion of the unit with respect to a housing | casing. It is the perspective view explaining the state just before insertion of the unit with respect to a housing | casing with the fall-out prevention lock means of a unit. It is the perspective view explaining the insertion state of the unit with respect to a housing | casing with the drop-out prevention lock means of a unit. It is a disassembled perspective view explaining the unit dropout prevention locking means. It is the perspective view explaining the lock state of the unit drop-out prevention lock means. It is the perspective view explaining the lock release of the unit dropout prevention lock means. It is the perspective view explaining the opposing space adjustment mechanism of a rail. It is the perspective view explaining the opposing space adjustment mechanism of a rail. It is the fragmentary top view explaining the opposing space adjustment mechanism of a rail. It is the perspective view explaining the opposing space adjustment mechanism of a rail. It is the front view explaining the opposing space adjustment mechanism of a rail. It is the perspective view explaining the rail length adjustment structure. It is a top view explaining the rail length adjustment structure. It is a disassembled perspective view explaining the slide lock means. It is sectional drawing explaining the slide lock | rock means. It is the fragmentary front view explaining the slide lock means in the locked state. It is a partial front view explaining the slide lock means in the unlocked state. It is a perspective view explaining the structure of a rail.

Explanation of symbols

  1 housing, 2 units, 2a, 2b unit side rail, 4a, 4b housing side rail.

Claims (8)

In a unit mounting structure of an electronic device including a housing and a unit that is movably supported in the insertion / extraction direction via a guide means with respect to the housing,
A pair of housing side rails respectively provided on the left and right inner walls of the housing,
A pair of unit side rails respectively provided on the left and right outer walls of the unit;
Any one of the pair of housing side rails and the pair of unit side rails is characterized in that the insertion start side ends are aligned in the insertion / extraction direction, and the remaining pair is shifted in the insertion start / extraction direction. Unit mounting structure for electronic equipment. The pair of housing side rails have their insertion start side ends aligned in the insertion / extraction direction,
2. The unit mounting structure for an electronic device according to claim 1, wherein each of the pair of unit side rails has an insertion start side end portion shifted in the insertion / extraction direction.   3. The unit mounting structure for an electronic device according to claim 2, wherein the pair of housing side rails have the same length, and the pair of unit side rails have different lengths.   The unit drop-out prevention lock means for preventing the unit-side rail from being detached from the housing-side rail is provided between the housing-side rail and the unit-side rail. The unit mounting structure of the electronic device of any one of Claims 1. The pair of unit side rails have their insertion start side ends aligned in the insertion / extraction direction,
5. The unit mounting structure for an electronic device according to claim 1, wherein each of the pair of housing side rails is shifted in an insertion / extraction direction at each insertion start side end.   The plurality of insertion start side ends of one case side rail constituting the pair of case side rails are displaced in the insertion / extraction direction with respect to the insertion start side end of the other case side rail. 6. The unit mounting structure for an electronic device according to claim 5, further comprising: a rail length adjusting structure in which the rails are slidably combined, and a slide lock means for locking expansion and contraction of the rail length by the rail length adjusting structure.   The pair of housing-side rails have an adjustment mechanism that can adjust an interval between the opposing sides, and the adjustment mechanism can move one of the pair of housing-side rails within a moving range arbitrarily defined in the opposing interval adjusting direction. The support means for supporting the housing and the elastic means for urging the housing-side rail supported by the support means in a direction approaching the other housing-side rail. A unit mounting structure for an electronic device according to claim 1. In a unit mounting structure of an electronic device including a housing and a unit that is movably supported in the insertion / extraction direction via a guide means with respect to the housing,
A pair of housing side rails provided on the left and right inner walls of the housing; and a pair of unit side rails provided on the left and right outer walls of the unit, respectively.
The pair of housing-side rails have an adjustment mechanism that can adjust an interval between the opposing sides, and the adjustment mechanism can move one of the pair of housing-side rails within a moving range arbitrarily defined in the opposing interval adjusting direction. A unit mounting structure for an electronic device, comprising: a supporting means for supporting the housing side; and an elastic means for urging the housing side rail supported by the supporting means toward the other housing side rail.

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